<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2011 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: AbstractSimpleContainer.html 795 2013-12-11 18:48:15Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.stuff.vaadin;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.vaadin.data.Container;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.vaadin.data.Item;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import com.vaadin.data.Property;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import com.vaadin.data.util.AbstractInMemoryContainer;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import com.vaadin.data.util.DefaultItemSorter;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import com.vaadin.data.util.filter.SimpleStringFilter;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import com.vaadin.data.util.filter.UnsupportedFilterException;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>import java.util.ArrayList;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import java.util.Collection;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.util.Collections;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.HashMap;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.Set;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>/**<a name="line.26"></a>
<span class="sourceLineNo">027</span> * Support superclass for simple read-only, in-memory {@link Container} implementations where each<a name="line.27"></a>
<span class="sourceLineNo">028</span> * {@link Item} in the container is backed by a Java object.<a name="line.28"></a>
<span class="sourceLineNo">029</span> *<a name="line.29"></a>
<span class="sourceLineNo">030</span> * &lt;p&gt;<a name="line.30"></a>
<span class="sourceLineNo">031</span> * This {@link Container}'s {@link Property}s are defined via {@link PropertyDef}s, and a {@link PropertyExtractor}<a name="line.31"></a>
<span class="sourceLineNo">032</span> * is used to actually extract the property values from each underlying object (alternately, subclasses can override<a name="line.32"></a>
<span class="sourceLineNo">033</span> * {@link #getPropertyValue getPropertyValue()}). However, the easist way to configure the container {@link Property}s<a name="line.33"></a>
<span class="sourceLineNo">034</span> * is to pass a {@link ProvidesProperty &amp;#64;ProvidesProperty}-annotated Java class to the {@link #AbstractSimpleContainer(Class)}<a name="line.34"></a>
<span class="sourceLineNo">035</span> * constructor.<a name="line.35"></a>
<span class="sourceLineNo">036</span> * &lt;/p&gt;<a name="line.36"></a>
<span class="sourceLineNo">037</span> *<a name="line.37"></a>
<span class="sourceLineNo">038</span> * &lt;p&gt;<a name="line.38"></a>
<span class="sourceLineNo">039</span> * Use {@link #load load()} to load or reload the container.<a name="line.39"></a>
<span class="sourceLineNo">040</span> * &lt;/p&gt;<a name="line.40"></a>
<span class="sourceLineNo">041</span> *<a name="line.41"></a>
<span class="sourceLineNo">042</span> * @param &lt;I&gt; the item ID type<a name="line.42"></a>
<span class="sourceLineNo">043</span> * @param &lt;T&gt; the type of the Java objects that back each {@link Item} in the container<a name="line.43"></a>
<span class="sourceLineNo">044</span> *<a name="line.44"></a>
<span class="sourceLineNo">045</span> * @see SimpleItem<a name="line.45"></a>
<span class="sourceLineNo">046</span> * @see SimpleProperty<a name="line.46"></a>
<span class="sourceLineNo">047</span> */<a name="line.47"></a>
<span class="sourceLineNo">048</span>@SuppressWarnings("serial")<a name="line.48"></a>
<span class="sourceLineNo">049</span>public abstract class AbstractSimpleContainer&lt;I, T&gt; extends AbstractInMemoryContainer&lt;I, String, SimpleItem&lt;T&gt;&gt;<a name="line.49"></a>
<span class="sourceLineNo">050</span>  implements PropertyExtractor&lt;T&gt;, Container.Filterable, Container.SimpleFilterable, Container.Sortable {<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>    private final HashMap&lt;String, PropertyDef&lt;?&gt;&gt; propertyMap = new HashMap&lt;String, PropertyDef&lt;?&gt;&gt;();<a name="line.52"></a>
<span class="sourceLineNo">053</span>    private PropertyExtractor&lt;? super T&gt; propertyExtractor;<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>// Constructors<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span>    /**<a name="line.57"></a>
<span class="sourceLineNo">058</span>     * Constructor.<a name="line.58"></a>
<span class="sourceLineNo">059</span>     *<a name="line.59"></a>
<span class="sourceLineNo">060</span>     * &lt;p&gt;<a name="line.60"></a>
<span class="sourceLineNo">061</span>     * After using this constructor, subsequent invocations of {@link #setPropertyExtractor setPropertyExtractor()}<a name="line.61"></a>
<span class="sourceLineNo">062</span>     * and {@link #setProperties setProperties()} are required to define the properties of this container<a name="line.62"></a>
<span class="sourceLineNo">063</span>     * and how to extract them.<a name="line.63"></a>
<span class="sourceLineNo">064</span>     * &lt;/p&gt;<a name="line.64"></a>
<span class="sourceLineNo">065</span>     */<a name="line.65"></a>
<span class="sourceLineNo">066</span>    protected AbstractSimpleContainer() {<a name="line.66"></a>
<span class="sourceLineNo">067</span>        this((PropertyExtractor&lt;? super T&gt;)null);<a name="line.67"></a>
<span class="sourceLineNo">068</span>    }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>    /**<a name="line.70"></a>
<span class="sourceLineNo">071</span>     * Constructor.<a name="line.71"></a>
<span class="sourceLineNo">072</span>     *<a name="line.72"></a>
<span class="sourceLineNo">073</span>     * &lt;p&gt;<a name="line.73"></a>
<span class="sourceLineNo">074</span>     * After using this constructor, a subsequent invocation of {@link #setProperties setProperties()} is required<a name="line.74"></a>
<span class="sourceLineNo">075</span>     * to define the properties of this container.<a name="line.75"></a>
<span class="sourceLineNo">076</span>     * &lt;/p&gt;<a name="line.76"></a>
<span class="sourceLineNo">077</span>     *<a name="line.77"></a>
<span class="sourceLineNo">078</span>     * @param propertyExtractor used to extract properties from the underlying Java objects;<a name="line.78"></a>
<span class="sourceLineNo">079</span>     *  may be null but then container is not usable until one is configured via<a name="line.79"></a>
<span class="sourceLineNo">080</span>     * {@link #setPropertyExtractor setPropertyExtractor()}<a name="line.80"></a>
<span class="sourceLineNo">081</span>     */<a name="line.81"></a>
<span class="sourceLineNo">082</span>    protected AbstractSimpleContainer(PropertyExtractor&lt;? super T&gt; propertyExtractor) {<a name="line.82"></a>
<span class="sourceLineNo">083</span>        this(propertyExtractor, null);<a name="line.83"></a>
<span class="sourceLineNo">084</span>    }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>    /**<a name="line.86"></a>
<span class="sourceLineNo">087</span>     * Constructor.<a name="line.87"></a>
<span class="sourceLineNo">088</span>     *<a name="line.88"></a>
<span class="sourceLineNo">089</span>     * &lt;p&gt;<a name="line.89"></a>
<span class="sourceLineNo">090</span>     * After using this constructor, a subsequent invocation of {@link #setPropertyExtractor setPropertyExtractor()} is required<a name="line.90"></a>
<span class="sourceLineNo">091</span>     * to define how to extract the properties of this container; alternately, subclasses can override<a name="line.91"></a>
<span class="sourceLineNo">092</span>     * {@link #getPropertyValue getPropertyValue()}.<a name="line.92"></a>
<span class="sourceLineNo">093</span>     * &lt;/p&gt;<a name="line.93"></a>
<span class="sourceLineNo">094</span>     *<a name="line.94"></a>
<span class="sourceLineNo">095</span>     * @param propertyDefs container property definitions; null is treated like the empty set<a name="line.95"></a>
<span class="sourceLineNo">096</span>     */<a name="line.96"></a>
<span class="sourceLineNo">097</span>    protected AbstractSimpleContainer(Collection&lt;? extends PropertyDef&lt;?&gt;&gt; propertyDefs) {<a name="line.97"></a>
<span class="sourceLineNo">098</span>        this(null, propertyDefs);<a name="line.98"></a>
<span class="sourceLineNo">099</span>    }<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span>    /**<a name="line.101"></a>
<span class="sourceLineNo">102</span>     * Constructor.<a name="line.102"></a>
<span class="sourceLineNo">103</span>     *<a name="line.103"></a>
<span class="sourceLineNo">104</span>     * @param propertyExtractor used to extract properties from the underlying Java objects;<a name="line.104"></a>
<span class="sourceLineNo">105</span>     *  may be null but then container is not usable until one is configured via<a name="line.105"></a>
<span class="sourceLineNo">106</span>     * {@link #setPropertyExtractor setPropertyExtractor()}<a name="line.106"></a>
<span class="sourceLineNo">107</span>     * @param propertyDefs container property definitions; null is treated like the empty set<a name="line.107"></a>
<span class="sourceLineNo">108</span>     */<a name="line.108"></a>
<span class="sourceLineNo">109</span>    protected AbstractSimpleContainer(PropertyExtractor&lt;? super T&gt; propertyExtractor,<a name="line.109"></a>
<span class="sourceLineNo">110</span>      Collection&lt;? extends PropertyDef&lt;?&gt;&gt; propertyDefs) {<a name="line.110"></a>
<span class="sourceLineNo">111</span>        this.setItemSorter(new SimpleItemSorter());<a name="line.111"></a>
<span class="sourceLineNo">112</span>        this.setPropertyExtractor(propertyExtractor);<a name="line.112"></a>
<span class="sourceLineNo">113</span>        this.setProperties(propertyDefs);<a name="line.113"></a>
<span class="sourceLineNo">114</span>    }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>    /**<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * Constructor.<a name="line.117"></a>
<span class="sourceLineNo">118</span>     *<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * &lt;p&gt;<a name="line.119"></a>
<span class="sourceLineNo">120</span>     * Properties will be determined by the {@link ProvidesProperty &amp;#64;ProvidesProperty} and<a name="line.120"></a>
<span class="sourceLineNo">121</span>     * {@link ProvidesPropertySort &amp;#64;ProvidesPropertySort} annotated methods in the given class.<a name="line.121"></a>
<span class="sourceLineNo">122</span>     * &lt;/p&gt;<a name="line.122"></a>
<span class="sourceLineNo">123</span>     *<a name="line.123"></a>
<span class="sourceLineNo">124</span>     * @param type class to introspect for annotated methods<a name="line.124"></a>
<span class="sourceLineNo">125</span>     * @throws IllegalArgumentException if {@code type} is null<a name="line.125"></a>
<span class="sourceLineNo">126</span>     * @throws IllegalArgumentException if {@code type} has two {@link ProvidesProperty &amp;#64;ProvidesProperty}<a name="line.126"></a>
<span class="sourceLineNo">127</span>     *  or {@link ProvidesPropertySort &amp;#64;ProvidesPropertySort} annotated methods for the same property<a name="line.127"></a>
<span class="sourceLineNo">128</span>     * @throws IllegalArgumentException if a {@link ProvidesProperty &amp;#64;ProvidesProperty}-annotated method with no<a name="line.128"></a>
<span class="sourceLineNo">129</span>     *  {@linkplain ProvidesProperty#value property name specified} has a name which cannot be interpreted as a bean<a name="line.129"></a>
<span class="sourceLineNo">130</span>     *  property "getter" method<a name="line.130"></a>
<span class="sourceLineNo">131</span>     * @see ProvidesProperty<a name="line.131"></a>
<span class="sourceLineNo">132</span>     * @see ProvidesPropertySort<a name="line.132"></a>
<span class="sourceLineNo">133</span>     * @see ProvidesPropertyScanner<a name="line.133"></a>
<span class="sourceLineNo">134</span>     */<a name="line.134"></a>
<span class="sourceLineNo">135</span>    @SuppressWarnings({ "unchecked", "rawtypes" })<a name="line.135"></a>
<span class="sourceLineNo">136</span>    protected AbstractSimpleContainer(Class&lt;? super T&gt; type) {<a name="line.136"></a>
<span class="sourceLineNo">137</span>        // Why the JLS forces this stupid cast:<a name="line.137"></a>
<span class="sourceLineNo">138</span>        //  http://stackoverflow.com/questions/4902723/why-cant-a-java-type-parameter-have-a-lower-bound<a name="line.138"></a>
<span class="sourceLineNo">139</span>        final ProvidesPropertyScanner&lt;? super T&gt; propertyReader<a name="line.139"></a>
<span class="sourceLineNo">140</span>          = (ProvidesPropertyScanner&lt;? super T&gt;)new ProvidesPropertyScanner(type);<a name="line.140"></a>
<span class="sourceLineNo">141</span>        this.setItemSorter(new SimpleItemSorter());<a name="line.141"></a>
<span class="sourceLineNo">142</span>        this.setPropertyExtractor(propertyReader.getPropertyExtractor());<a name="line.142"></a>
<span class="sourceLineNo">143</span>        this.setProperties(propertyReader.getPropertyDefs());<a name="line.143"></a>
<span class="sourceLineNo">144</span>    }<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span>// Public methods<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>    /**<a name="line.148"></a>
<span class="sourceLineNo">149</span>     * Get the configured {@link PropertyExtractor} for this container.<a name="line.149"></a>
<span class="sourceLineNo">150</span>     */<a name="line.150"></a>
<span class="sourceLineNo">151</span>    public PropertyExtractor&lt;? super T&gt; getPropertyExtractor() {<a name="line.151"></a>
<span class="sourceLineNo">152</span>        return this.propertyExtractor;<a name="line.152"></a>
<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span>    /**<a name="line.155"></a>
<span class="sourceLineNo">156</span>     * Change the configured {@link PropertyExtractor} for this container.<a name="line.156"></a>
<span class="sourceLineNo">157</span>     * Invoking this method does not result in any container notifications.<a name="line.157"></a>
<span class="sourceLineNo">158</span>     *<a name="line.158"></a>
<span class="sourceLineNo">159</span>     * @param propertyExtractor used to extract properties from the underlying Java objects;<a name="line.159"></a>
<span class="sourceLineNo">160</span>     *  may be null but the container is not usable without one<a name="line.160"></a>
<span class="sourceLineNo">161</span>     */<a name="line.161"></a>
<span class="sourceLineNo">162</span>    public void setPropertyExtractor(PropertyExtractor&lt;? super T&gt; propertyExtractor) {<a name="line.162"></a>
<span class="sourceLineNo">163</span>        this.propertyExtractor = propertyExtractor;<a name="line.163"></a>
<span class="sourceLineNo">164</span>    }<a name="line.164"></a>
<span class="sourceLineNo">165</span><a name="line.165"></a>
<span class="sourceLineNo">166</span>    /**<a name="line.166"></a>
<span class="sourceLineNo">167</span>     * Read the value of the property defined by {@code propertyDef} from the given object.<a name="line.167"></a>
<span class="sourceLineNo">168</span>     *<a name="line.168"></a>
<span class="sourceLineNo">169</span>     * &lt;p&gt;<a name="line.169"></a>
<span class="sourceLineNo">170</span>     * The implementation in {@link AbstractSimpleContainer} just delegates to the {@linkplain #setPropertyExtractor configured}<a name="line.170"></a>
<span class="sourceLineNo">171</span>     * {@link PropertyExtractor}; subclasses may override to customize property extraction.<a name="line.171"></a>
<span class="sourceLineNo">172</span>     * &lt;/p&gt;<a name="line.172"></a>
<span class="sourceLineNo">173</span>     *<a name="line.173"></a>
<span class="sourceLineNo">174</span>     * @param obj Java object<a name="line.174"></a>
<span class="sourceLineNo">175</span>     * @param propertyDef definition of which property to read<a name="line.175"></a>
<span class="sourceLineNo">176</span>     * @throws NullPointerException if either parameter is null<a name="line.176"></a>
<span class="sourceLineNo">177</span>     * @throws IllegalStateException if no {@link PropertyExtractor} is configured for this container<a name="line.177"></a>
<span class="sourceLineNo">178</span>     */<a name="line.178"></a>
<span class="sourceLineNo">179</span>    @Override<a name="line.179"></a>
<span class="sourceLineNo">180</span>    public &lt;V&gt; V getPropertyValue(T obj, PropertyDef&lt;V&gt; propertyDef) {<a name="line.180"></a>
<span class="sourceLineNo">181</span>        if (this.propertyExtractor == null)<a name="line.181"></a>
<span class="sourceLineNo">182</span>            throw new IllegalStateException("no PropertyExtractor is configured for this container");<a name="line.182"></a>
<span class="sourceLineNo">183</span>        return this.propertyExtractor.getPropertyValue(obj, propertyDef);<a name="line.183"></a>
<span class="sourceLineNo">184</span>    }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span>    /**<a name="line.186"></a>
<span class="sourceLineNo">187</span>     * Change the configured properties of this container.<a name="line.187"></a>
<span class="sourceLineNo">188</span>     *<a name="line.188"></a>
<span class="sourceLineNo">189</span>     * @param propertyDefs container property definitions; null is treated like the empty set<a name="line.189"></a>
<span class="sourceLineNo">190</span>     * @throws IllegalArgumentException if {@code propertyDefs} contains a property with a duplicate name<a name="line.190"></a>
<span class="sourceLineNo">191</span>     */<a name="line.191"></a>
<span class="sourceLineNo">192</span>    public void setProperties(Collection&lt;? extends PropertyDef&lt;?&gt;&gt; propertyDefs) {<a name="line.192"></a>
<span class="sourceLineNo">193</span>        if (propertyDefs == null)<a name="line.193"></a>
<span class="sourceLineNo">194</span>            propertyDefs = Collections.&lt;PropertyDef&lt;?&gt;&gt;emptySet();<a name="line.194"></a>
<span class="sourceLineNo">195</span>        this.propertyMap.clear();<a name="line.195"></a>
<span class="sourceLineNo">196</span>        for (PropertyDef&lt;?&gt; propertyDef : propertyDefs) {<a name="line.196"></a>
<span class="sourceLineNo">197</span>            if (this.propertyMap.put(propertyDef.getName(), propertyDef) != null)<a name="line.197"></a>
<span class="sourceLineNo">198</span>                throw new IllegalArgumentException("duplicate property name `" + propertyDef.getName() + "'");<a name="line.198"></a>
<span class="sourceLineNo">199</span>        }<a name="line.199"></a>
<span class="sourceLineNo">200</span>        this.fireContainerPropertySetChange();<a name="line.200"></a>
<span class="sourceLineNo">201</span>    }<a name="line.201"></a>
<span class="sourceLineNo">202</span><a name="line.202"></a>
<span class="sourceLineNo">203</span>    /**<a name="line.203"></a>
<span class="sourceLineNo">204</span>     * Add or replace a configured property of this container.<a name="line.204"></a>
<span class="sourceLineNo">205</span>     *<a name="line.205"></a>
<span class="sourceLineNo">206</span>     * @param propertyDef new container property definitions<a name="line.206"></a>
<span class="sourceLineNo">207</span>     * @throws IllegalArgumentException if {@code propertyDef} is null<a name="line.207"></a>
<span class="sourceLineNo">208</span>     */<a name="line.208"></a>
<span class="sourceLineNo">209</span>    public void setProperty(PropertyDef&lt;?&gt; propertyDef) {<a name="line.209"></a>
<span class="sourceLineNo">210</span>        if (propertyDef == null)<a name="line.210"></a>
<span class="sourceLineNo">211</span>            throw new IllegalArgumentException("null propertyDef");<a name="line.211"></a>
<span class="sourceLineNo">212</span>        this.propertyMap.put(propertyDef.getName(), propertyDef);<a name="line.212"></a>
<span class="sourceLineNo">213</span>        this.fireContainerPropertySetChange();<a name="line.213"></a>
<span class="sourceLineNo">214</span>    }<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span>    /**<a name="line.216"></a>
<span class="sourceLineNo">217</span>     * Change this container's contents.<a name="line.217"></a>
<span class="sourceLineNo">218</span>     *<a name="line.218"></a>
<span class="sourceLineNo">219</span>     * @param contents new container contents<a name="line.219"></a>
<span class="sourceLineNo">220</span>     * @throws IllegalArgumentException if {@code contents} or any item in {@code contents} is null<a name="line.220"></a>
<span class="sourceLineNo">221</span>     */<a name="line.221"></a>
<span class="sourceLineNo">222</span>    public void load(Iterable&lt;? extends T&gt; contents) {<a name="line.222"></a>
<span class="sourceLineNo">223</span><a name="line.223"></a>
<span class="sourceLineNo">224</span>        // Sanity check<a name="line.224"></a>
<span class="sourceLineNo">225</span>        if (contents == null)<a name="line.225"></a>
<span class="sourceLineNo">226</span>            throw new IllegalArgumentException("null contents");<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span>        // Reset item IDs<a name="line.228"></a>
<span class="sourceLineNo">229</span>        this.resetItemIds();<a name="line.229"></a>
<span class="sourceLineNo">230</span>        this.internalRemoveAllItems();<a name="line.230"></a>
<span class="sourceLineNo">231</span><a name="line.231"></a>
<span class="sourceLineNo">232</span>        // Bulk load and register items with id's 0, 1, 2, ...<a name="line.232"></a>
<span class="sourceLineNo">233</span>        int index = 0;<a name="line.233"></a>
<span class="sourceLineNo">234</span>        for (T obj : contents) {<a name="line.234"></a>
<span class="sourceLineNo">235</span>            if (obj == null)<a name="line.235"></a>
<span class="sourceLineNo">236</span>                throw new IllegalArgumentException("null item in contents at index " + index);<a name="line.236"></a>
<span class="sourceLineNo">237</span>            SimpleItem&lt;T&gt; item = new SimpleItem&lt;T&gt;(obj, this.propertyMap, this);<a name="line.237"></a>
<span class="sourceLineNo">238</span>            this.internalAddItemAtEnd(this.generateItemId(obj), item, false);<a name="line.238"></a>
<span class="sourceLineNo">239</span>            index++;<a name="line.239"></a>
<span class="sourceLineNo">240</span>        }<a name="line.240"></a>
<span class="sourceLineNo">241</span><a name="line.241"></a>
<span class="sourceLineNo">242</span>        // Apply filters<a name="line.242"></a>
<span class="sourceLineNo">243</span>        this.filterAll();<a name="line.243"></a>
<span class="sourceLineNo">244</span><a name="line.244"></a>
<span class="sourceLineNo">245</span>        // Notify subclass<a name="line.245"></a>
<span class="sourceLineNo">246</span>        this.afterReload();<a name="line.246"></a>
<span class="sourceLineNo">247</span><a name="line.247"></a>
<span class="sourceLineNo">248</span>        // Fire event<a name="line.248"></a>
<span class="sourceLineNo">249</span>        this.fireItemSetChange();<a name="line.249"></a>
<span class="sourceLineNo">250</span>    }<a name="line.250"></a>
<span class="sourceLineNo">251</span><a name="line.251"></a>
<span class="sourceLineNo">252</span>    /**<a name="line.252"></a>
<span class="sourceLineNo">253</span>     * Get the container item ID corresponding to the given underlying Java object which is wrapped by this container.<a name="line.253"></a>
<span class="sourceLineNo">254</span>     * Objects are tested for equality using {@link Object#equals Object.equals()}.<a name="line.254"></a>
<span class="sourceLineNo">255</span>     *<a name="line.255"></a>
<span class="sourceLineNo">256</span>     * &lt;p&gt;<a name="line.256"></a>
<span class="sourceLineNo">257</span>     * The implementation in {@link AbstractSimpleContainer} requires a linear search of the container.<a name="line.257"></a>
<span class="sourceLineNo">258</span>     * Some subclasses may provide a more efficient implementation.<a name="line.258"></a>
<span class="sourceLineNo">259</span>     * &lt;/p&gt;<a name="line.259"></a>
<span class="sourceLineNo">260</span>     *<a name="line.260"></a>
<span class="sourceLineNo">261</span>     * &lt;p&gt;<a name="line.261"></a>
<span class="sourceLineNo">262</span>     * This method is not used by this class but is defined as a convenience for subclasses.<a name="line.262"></a>
<span class="sourceLineNo">263</span>     * &lt;/p&gt;<a name="line.263"></a>
<span class="sourceLineNo">264</span>     *<a name="line.264"></a>
<span class="sourceLineNo">265</span>     * &lt;p&gt;<a name="line.265"></a>
<span class="sourceLineNo">266</span>     * Note: items that are filtered out will not be found.<a name="line.266"></a>
<span class="sourceLineNo">267</span>     *<a name="line.267"></a>
<span class="sourceLineNo">268</span>     * @param obj underlying container object<a name="line.268"></a>
<span class="sourceLineNo">269</span>     * @return item ID corresponding to {@code object}, or null if {@code object} is not found in this container<a name="line.269"></a>
<span class="sourceLineNo">270</span>     * @throws IllegalArgumentException if {@code object} is null<a name="line.270"></a>
<span class="sourceLineNo">271</span>     * @see #getItemIdForSame<a name="line.271"></a>
<span class="sourceLineNo">272</span>     */<a name="line.272"></a>
<span class="sourceLineNo">273</span>    public I getItemIdFor(T obj) {<a name="line.273"></a>
<span class="sourceLineNo">274</span>        if (obj == null)<a name="line.274"></a>
<span class="sourceLineNo">275</span>            throw new IllegalArgumentException("null object");<a name="line.275"></a>
<span class="sourceLineNo">276</span>        for (I itemId : this.getItemIds()) {<a name="line.276"></a>
<span class="sourceLineNo">277</span>            T candidate = this.getJavaObject(itemId);<a name="line.277"></a>
<span class="sourceLineNo">278</span>            if (obj.equals(candidate))<a name="line.278"></a>
<span class="sourceLineNo">279</span>                return itemId;<a name="line.279"></a>
<span class="sourceLineNo">280</span>        }<a name="line.280"></a>
<span class="sourceLineNo">281</span>        return null;<a name="line.281"></a>
<span class="sourceLineNo">282</span>    }<a name="line.282"></a>
<span class="sourceLineNo">283</span><a name="line.283"></a>
<span class="sourceLineNo">284</span>    /**<a name="line.284"></a>
<span class="sourceLineNo">285</span>     * Get the container item ID corresponding to the given underlying Java object which is wrapped by this container.<a name="line.285"></a>
<span class="sourceLineNo">286</span>     * Objects are tested for equality using object equality, not {@link Object#equals Object.equals()}.<a name="line.286"></a>
<span class="sourceLineNo">287</span>     *<a name="line.287"></a>
<span class="sourceLineNo">288</span>     * &lt;p&gt;<a name="line.288"></a>
<span class="sourceLineNo">289</span>     * The implementation in {@link AbstractSimpleContainer} requires a linear search of the container.<a name="line.289"></a>
<span class="sourceLineNo">290</span>     * Some subclasses may provide a more efficient implementation.<a name="line.290"></a>
<span class="sourceLineNo">291</span>     * &lt;/p&gt;<a name="line.291"></a>
<span class="sourceLineNo">292</span>     *<a name="line.292"></a>
<span class="sourceLineNo">293</span>     * &lt;p&gt;<a name="line.293"></a>
<span class="sourceLineNo">294</span>     * This method is not used by this class but is defined as a convenience for subclasses.<a name="line.294"></a>
<span class="sourceLineNo">295</span>     * &lt;/p&gt;<a name="line.295"></a>
<span class="sourceLineNo">296</span>     *<a name="line.296"></a>
<span class="sourceLineNo">297</span>     * &lt;p&gt;<a name="line.297"></a>
<span class="sourceLineNo">298</span>     * Note: items that are filtered out will not be found.<a name="line.298"></a>
<span class="sourceLineNo">299</span>     *<a name="line.299"></a>
<span class="sourceLineNo">300</span>     * @param obj underlying container object<a name="line.300"></a>
<span class="sourceLineNo">301</span>     * @return item ID corresponding to {@code object}, or null if {@code object} is not found in this container<a name="line.301"></a>
<span class="sourceLineNo">302</span>     * @throws IllegalArgumentException if {@code object} is null<a name="line.302"></a>
<span class="sourceLineNo">303</span>     * @see #getItemIdFor<a name="line.303"></a>
<span class="sourceLineNo">304</span>     */<a name="line.304"></a>
<span class="sourceLineNo">305</span>    public I getItemIdForSame(T obj) {<a name="line.305"></a>
<span class="sourceLineNo">306</span>        if (obj == null)<a name="line.306"></a>
<span class="sourceLineNo">307</span>            throw new IllegalArgumentException("null object");<a name="line.307"></a>
<span class="sourceLineNo">308</span>        for (I itemId : this.getItemIds()) {<a name="line.308"></a>
<span class="sourceLineNo">309</span>            T candidate = this.getJavaObject(itemId);<a name="line.309"></a>
<span class="sourceLineNo">310</span>            if (obj == candidate)<a name="line.310"></a>
<span class="sourceLineNo">311</span>                return itemId;<a name="line.311"></a>
<span class="sourceLineNo">312</span>        }<a name="line.312"></a>
<span class="sourceLineNo">313</span>        return null;<a name="line.313"></a>
<span class="sourceLineNo">314</span>    }<a name="line.314"></a>
<span class="sourceLineNo">315</span><a name="line.315"></a>
<span class="sourceLineNo">316</span>// Container and superclass required methods<a name="line.316"></a>
<span class="sourceLineNo">317</span><a name="line.317"></a>
<span class="sourceLineNo">318</span>    // Workaround for http://dev.vaadin.com/ticket/8856<a name="line.318"></a>
<span class="sourceLineNo">319</span>    @Override<a name="line.319"></a>
<span class="sourceLineNo">320</span>    @SuppressWarnings("unchecked")<a name="line.320"></a>
<span class="sourceLineNo">321</span>    public List&lt;I&gt; getItemIds() {<a name="line.321"></a>
<span class="sourceLineNo">322</span>        return (List&lt;I&gt;)super.getItemIds();<a name="line.322"></a>
<span class="sourceLineNo">323</span>    }<a name="line.323"></a>
<span class="sourceLineNo">324</span><a name="line.324"></a>
<span class="sourceLineNo">325</span>    @Override<a name="line.325"></a>
<span class="sourceLineNo">326</span>    public Set&lt;String&gt; getContainerPropertyIds() {<a name="line.326"></a>
<span class="sourceLineNo">327</span>        return Collections.unmodifiableSet(this.propertyMap.keySet());<a name="line.327"></a>
<span class="sourceLineNo">328</span>    }<a name="line.328"></a>
<span class="sourceLineNo">329</span><a name="line.329"></a>
<span class="sourceLineNo">330</span>    @Override<a name="line.330"></a>
<span class="sourceLineNo">331</span>    public Property getContainerProperty(Object itemId, Object propertyId) {        // TODO: VAADIN7<a name="line.331"></a>
<span class="sourceLineNo">332</span>        SimpleItem&lt;T&gt; entityItem = this.getItem(itemId);<a name="line.332"></a>
<span class="sourceLineNo">333</span>        if (entityItem == null)<a name="line.333"></a>
<span class="sourceLineNo">334</span>            return null;<a name="line.334"></a>
<span class="sourceLineNo">335</span>        return entityItem.getItemProperty(propertyId);<a name="line.335"></a>
<span class="sourceLineNo">336</span>    }<a name="line.336"></a>
<span class="sourceLineNo">337</span><a name="line.337"></a>
<span class="sourceLineNo">338</span>    @Override<a name="line.338"></a>
<span class="sourceLineNo">339</span>    public Class&lt;?&gt; getType(Object propertyId) {<a name="line.339"></a>
<span class="sourceLineNo">340</span>        PropertyDef&lt;?&gt; propertyDef = this.propertyMap.get(propertyId);<a name="line.340"></a>
<span class="sourceLineNo">341</span>        return propertyDef != null ? propertyDef.getType() : null;<a name="line.341"></a>
<span class="sourceLineNo">342</span>    }<a name="line.342"></a>
<span class="sourceLineNo">343</span><a name="line.343"></a>
<span class="sourceLineNo">344</span>    @Override<a name="line.344"></a>
<span class="sourceLineNo">345</span>    public SimpleItem&lt;T&gt; getUnfilteredItem(Object itemId) {<a name="line.345"></a>
<span class="sourceLineNo">346</span>        T obj = this.getJavaObject(itemId);<a name="line.346"></a>
<span class="sourceLineNo">347</span>        if (obj == null)<a name="line.347"></a>
<span class="sourceLineNo">348</span>            return null;<a name="line.348"></a>
<span class="sourceLineNo">349</span>        return new SimpleItem&lt;T&gt;(obj, this.propertyMap, this);<a name="line.349"></a>
<span class="sourceLineNo">350</span>    }<a name="line.350"></a>
<span class="sourceLineNo">351</span><a name="line.351"></a>
<span class="sourceLineNo">352</span>// Subclass methods<a name="line.352"></a>
<span class="sourceLineNo">353</span><a name="line.353"></a>
<span class="sourceLineNo">354</span>    /**<a name="line.354"></a>
<span class="sourceLineNo">355</span>     * Get the underlying Java object corresponding to the given item ID.<a name="line.355"></a>
<span class="sourceLineNo">356</span>     * This method ignores any filtering (i.e., filtered-out objects are still accessible).<a name="line.356"></a>
<span class="sourceLineNo">357</span>     *<a name="line.357"></a>
<span class="sourceLineNo">358</span>     * @param itemId item ID<a name="line.358"></a>
<span class="sourceLineNo">359</span>     * @return the corresponding Java object, or null if not found<a name="line.359"></a>
<span class="sourceLineNo">360</span>     */<a name="line.360"></a>
<span class="sourceLineNo">361</span>    public abstract T getJavaObject(Object itemId);<a name="line.361"></a>
<span class="sourceLineNo">362</span><a name="line.362"></a>
<span class="sourceLineNo">363</span>    /**<a name="line.363"></a>
<span class="sourceLineNo">364</span>     * Subclass hook invoked prior to each reload. The subclass should reset its state (e.g., issued item IDs) as required.<a name="line.364"></a>
<span class="sourceLineNo">365</span>     */<a name="line.365"></a>
<span class="sourceLineNo">366</span>    protected abstract void resetItemIds();<a name="line.366"></a>
<span class="sourceLineNo">367</span><a name="line.367"></a>
<span class="sourceLineNo">368</span>    /**<a name="line.368"></a>
<span class="sourceLineNo">369</span>     * Create a new, unique item ID for the given object. This method is invoked during a {@linkplain #load reload operation},<a name="line.369"></a>
<span class="sourceLineNo">370</span>     * once for each container object. Both visible and filtered objects will be passed to this method.<a name="line.370"></a>
<span class="sourceLineNo">371</span>     *<a name="line.371"></a>
<span class="sourceLineNo">372</span>     * &lt;p&gt;<a name="line.372"></a>
<span class="sourceLineNo">373</span>     * The returned item ID must be unique, i.e., not returned by this method since the most recent invocation of<a name="line.373"></a>
<span class="sourceLineNo">374</span>     * {@link #resetItemIds}.<a name="line.374"></a>
<span class="sourceLineNo">375</span>     *<a name="line.375"></a>
<span class="sourceLineNo">376</span>     * @param obj underlying container object, never null<a name="line.376"></a>
<span class="sourceLineNo">377</span>     * @return item ID, never null<a name="line.377"></a>
<span class="sourceLineNo">378</span>     */<a name="line.378"></a>
<span class="sourceLineNo">379</span>    protected abstract I generateItemId(T obj);<a name="line.379"></a>
<span class="sourceLineNo">380</span><a name="line.380"></a>
<span class="sourceLineNo">381</span>    /**<a name="line.381"></a>
<span class="sourceLineNo">382</span>     * Subclass hook invoked after each reload but prior to invoking {@link #fireItemSetChange}.<a name="line.382"></a>
<span class="sourceLineNo">383</span>     *<a name="line.383"></a>
<span class="sourceLineNo">384</span>     * &lt;p&gt;<a name="line.384"></a>
<span class="sourceLineNo">385</span>     * The implementation in {@link AbstractSimpleContainer} does nothing.<a name="line.385"></a>
<span class="sourceLineNo">386</span>     */<a name="line.386"></a>
<span class="sourceLineNo">387</span>    protected void afterReload() {<a name="line.387"></a>
<span class="sourceLineNo">388</span>    }<a name="line.388"></a>
<span class="sourceLineNo">389</span><a name="line.389"></a>
<span class="sourceLineNo">390</span> // Container methods<a name="line.390"></a>
<span class="sourceLineNo">391</span><a name="line.391"></a>
<span class="sourceLineNo">392</span>    @Override<a name="line.392"></a>
<span class="sourceLineNo">393</span>    public void sort(Object[] propertyId, boolean[] ascending) {<a name="line.393"></a>
<span class="sourceLineNo">394</span>        super.sortContainer(propertyId, ascending);<a name="line.394"></a>
<span class="sourceLineNo">395</span>    }<a name="line.395"></a>
<span class="sourceLineNo">396</span><a name="line.396"></a>
<span class="sourceLineNo">397</span>    @Override<a name="line.397"></a>
<span class="sourceLineNo">398</span>    public void addContainerFilter(Object propertyId, String filterString, boolean ignoreCase, boolean onlyMatchPrefix) {<a name="line.398"></a>
<span class="sourceLineNo">399</span>        try {<a name="line.399"></a>
<span class="sourceLineNo">400</span>            this.addFilter(new SimpleStringFilter(propertyId, filterString, ignoreCase, onlyMatchPrefix));<a name="line.400"></a>
<span class="sourceLineNo">401</span>        } catch (UnsupportedFilterException e) {<a name="line.401"></a>
<span class="sourceLineNo">402</span>            // the filter instance created here is always valid for in-memory containers<a name="line.402"></a>
<span class="sourceLineNo">403</span>            throw new RuntimeException("unexpected exception", e);<a name="line.403"></a>
<span class="sourceLineNo">404</span>        }<a name="line.404"></a>
<span class="sourceLineNo">405</span>    }<a name="line.405"></a>
<span class="sourceLineNo">406</span><a name="line.406"></a>
<span class="sourceLineNo">407</span>    @Override<a name="line.407"></a>
<span class="sourceLineNo">408</span>    public void removeAllContainerFilters() {<a name="line.408"></a>
<span class="sourceLineNo">409</span>        this.removeAllFilters();<a name="line.409"></a>
<span class="sourceLineNo">410</span>    }<a name="line.410"></a>
<span class="sourceLineNo">411</span><a name="line.411"></a>
<span class="sourceLineNo">412</span>    @Override<a name="line.412"></a>
<span class="sourceLineNo">413</span>    public void removeContainerFilters(Object propertyId) {<a name="line.413"></a>
<span class="sourceLineNo">414</span>        this.removeFilters(propertyId);<a name="line.414"></a>
<span class="sourceLineNo">415</span>    }<a name="line.415"></a>
<span class="sourceLineNo">416</span><a name="line.416"></a>
<span class="sourceLineNo">417</span>    @Override<a name="line.417"></a>
<span class="sourceLineNo">418</span>    public void addContainerFilter(Filter filter) {<a name="line.418"></a>
<span class="sourceLineNo">419</span>        this.addFilter(filter);<a name="line.419"></a>
<span class="sourceLineNo">420</span>    }<a name="line.420"></a>
<span class="sourceLineNo">421</span><a name="line.421"></a>
<span class="sourceLineNo">422</span>    @Override<a name="line.422"></a>
<span class="sourceLineNo">423</span>    public void removeContainerFilter(Filter filter) {<a name="line.423"></a>
<span class="sourceLineNo">424</span>        this.removeFilter(filter);<a name="line.424"></a>
<span class="sourceLineNo">425</span>    }<a name="line.425"></a>
<span class="sourceLineNo">426</span><a name="line.426"></a>
<span class="sourceLineNo">427</span>    @Override<a name="line.427"></a>
<span class="sourceLineNo">428</span>    public Collection&lt;?&gt; getSortableContainerPropertyIds() {<a name="line.428"></a>
<span class="sourceLineNo">429</span>        final ArrayList&lt;String&gt; propertyIds = new ArrayList&lt;String&gt;(this.propertyMap.size());<a name="line.429"></a>
<span class="sourceLineNo">430</span>        for (Map.Entry&lt;String, PropertyDef&lt;?&gt;&gt; entry : this.propertyMap.entrySet()) {<a name="line.430"></a>
<span class="sourceLineNo">431</span>            if (this.propertyExtractor instanceof SortingPropertyExtractor) {<a name="line.431"></a>
<span class="sourceLineNo">432</span>                final SortingPropertyExtractor&lt;? super T&gt; sortingPropertyExtractor<a name="line.432"></a>
<span class="sourceLineNo">433</span>                  = (SortingPropertyExtractor&lt;? super T&gt;)this.propertyExtractor;<a name="line.433"></a>
<span class="sourceLineNo">434</span>                if (sortingPropertyExtractor.canSort(entry.getValue())) {<a name="line.434"></a>
<span class="sourceLineNo">435</span>                    propertyIds.add(entry.getKey());<a name="line.435"></a>
<span class="sourceLineNo">436</span>                    continue;<a name="line.436"></a>
<span class="sourceLineNo">437</span>                }<a name="line.437"></a>
<span class="sourceLineNo">438</span>            }<a name="line.438"></a>
<span class="sourceLineNo">439</span>            if (entry.getValue().isSortable())<a name="line.439"></a>
<span class="sourceLineNo">440</span>                propertyIds.add(entry.getKey());<a name="line.440"></a>
<span class="sourceLineNo">441</span>        }<a name="line.441"></a>
<span class="sourceLineNo">442</span>        return propertyIds;<a name="line.442"></a>
<span class="sourceLineNo">443</span>    }<a name="line.443"></a>
<span class="sourceLineNo">444</span><a name="line.444"></a>
<span class="sourceLineNo">445</span>// ItemSorter class<a name="line.445"></a>
<span class="sourceLineNo">446</span><a name="line.446"></a>
<span class="sourceLineNo">447</span>    /**<a name="line.447"></a>
<span class="sourceLineNo">448</span>     * {@link ItemSorter} implementation used by {@link AbstractSimpleContainer}.<a name="line.448"></a>
<span class="sourceLineNo">449</span>     */<a name="line.449"></a>
<span class="sourceLineNo">450</span>    private class SimpleItemSorter extends DefaultItemSorter {<a name="line.450"></a>
<span class="sourceLineNo">451</span><a name="line.451"></a>
<span class="sourceLineNo">452</span>        @Override<a name="line.452"></a>
<span class="sourceLineNo">453</span>        @SuppressWarnings("unchecked")<a name="line.453"></a>
<span class="sourceLineNo">454</span>        protected int compareProperty(Object propertyId, boolean ascending, Item item1, Item item2) {<a name="line.454"></a>
<span class="sourceLineNo">455</span><a name="line.455"></a>
<span class="sourceLineNo">456</span>            // Get property definition<a name="line.456"></a>
<span class="sourceLineNo">457</span>            final PropertyDef&lt;?&gt; propertyDef = AbstractSimpleContainer.this.propertyMap.get(propertyId);<a name="line.457"></a>
<span class="sourceLineNo">458</span>            if (propertyDef == null)<a name="line.458"></a>
<span class="sourceLineNo">459</span>                return super.compareProperty(propertyId, ascending, item1, item2);<a name="line.459"></a>
<span class="sourceLineNo">460</span><a name="line.460"></a>
<span class="sourceLineNo">461</span>            // Ask SortingPropertyExtractor if we have one<a name="line.461"></a>
<span class="sourceLineNo">462</span>            if (AbstractSimpleContainer.this.propertyExtractor instanceof SortingPropertyExtractor) {<a name="line.462"></a>
<span class="sourceLineNo">463</span>                final SortingPropertyExtractor&lt;? super T&gt; sortingPropertyExtractor<a name="line.463"></a>
<span class="sourceLineNo">464</span>                  = (SortingPropertyExtractor&lt;? super T&gt;)AbstractSimpleContainer.this.propertyExtractor;<a name="line.464"></a>
<span class="sourceLineNo">465</span>                if (sortingPropertyExtractor.canSort(propertyDef)) {<a name="line.465"></a>
<span class="sourceLineNo">466</span>                    final T obj1 = ((SimpleItem&lt;T&gt;)item1).getObject();<a name="line.466"></a>
<span class="sourceLineNo">467</span>                    final T obj2 = ((SimpleItem&lt;T&gt;)item2).getObject();<a name="line.467"></a>
<span class="sourceLineNo">468</span>                    final int diff = sortingPropertyExtractor.sort(propertyDef, obj1, obj2);<a name="line.468"></a>
<span class="sourceLineNo">469</span>                    return ascending ? diff : -diff;<a name="line.469"></a>
<span class="sourceLineNo">470</span>                }<a name="line.470"></a>
<span class="sourceLineNo">471</span>            }<a name="line.471"></a>
<span class="sourceLineNo">472</span><a name="line.472"></a>
<span class="sourceLineNo">473</span>            // Ask property definition<a name="line.473"></a>
<span class="sourceLineNo">474</span>            if (propertyDef.isSortable()) {<a name="line.474"></a>
<span class="sourceLineNo">475</span>                final int diff = this.sort(propertyDef, item1, item2);<a name="line.475"></a>
<span class="sourceLineNo">476</span>                return ascending ? diff : -diff;<a name="line.476"></a>
<span class="sourceLineNo">477</span>            }<a name="line.477"></a>
<span class="sourceLineNo">478</span><a name="line.478"></a>
<span class="sourceLineNo">479</span>            // Defer to superclass<a name="line.479"></a>
<span class="sourceLineNo">480</span>            return super.compareProperty(propertyId, ascending, item1, item2);<a name="line.480"></a>
<span class="sourceLineNo">481</span>        }<a name="line.481"></a>
<span class="sourceLineNo">482</span><a name="line.482"></a>
<span class="sourceLineNo">483</span>        // This method exists only to allow the generic parameter &lt;V&gt; to be bound<a name="line.483"></a>
<span class="sourceLineNo">484</span>        private &lt;V&gt; int sort(PropertyDef&lt;V&gt; propertyDef, Item item1, Item item2) {<a name="line.484"></a>
<span class="sourceLineNo">485</span>            return propertyDef.sort(propertyDef.read(item1), propertyDef.read(item2));<a name="line.485"></a>
<span class="sourceLineNo">486</span>        }<a name="line.486"></a>
<span class="sourceLineNo">487</span>    }<a name="line.487"></a>
<span class="sourceLineNo">488</span>}<a name="line.488"></a>
<span class="sourceLineNo">489</span><a name="line.489"></a>




























































</pre>
</div>
</body>
</html>
